[MacPorts] #38279: rust @0.5: multiple issues

[MacPorts]

#38279: rust @0.5: multiple issues
----------------------+----------------------
  Reporter:  egall@…  |      Owner:  g5pw@…
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.1.3
Resolution:           |   Keywords:
      Port:  rust     |
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Comment (by larryv@…):

 Given its breadth of topics, this ticket should have been reported as
 multiple tickets.

 * 10.6 or newer? #38286
 * Universal? #38287
 * New dependencies? #38288
 * Compiler requirements? #38289
 * License? #38290

 Hope I got everything. Sorry for pounding you with tickets, Aljaž :P

 I took care of the dependency tracking issue in r103711. If Rust can’t be
 built universal after all, the `configure.universal_args-delete` line can
 be removed.

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Ticket URL: <https://trac.macports.org/ticket/38279#comment:7>
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